Hi and sorry for late response here.. I check in often but I missed this one..
I see this is a cousin of the Hemichromis bimaculatus, but is a guttatus..
It would seem they do NOT do good with others in the tank with them.. shame thou to waste a 55gal just on a pair, but U can get a smaler tank later and place them their.
See here for more info on them:
http://www.fishkeeping.co.uk/modules/ca ... heetID=111Hope this helps U some.. Barb..